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(No Model.) 2 Sheets-Sheet 1.

H. HAB ERLIN. MACHINE FOR PLANING CIRCULAR GUIDES FOR ENGINE BEDS. No.475,939. Patented May 31, 1892.

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(No Model.) 2 Sheets-Sheet 2.

H. HABERLIN. MACHINE FOR PLANING CIRCULAR GUIDES FOR ENGINE BEDS.

No. 475,939. Patented May 31, 1892.

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UNITED STATES PATENT OFFICE.

HERMAN HABERLIN, OF AKRON, OHIO, ASSIGNOR TO THE WEBSTER, CAMP 85 LANEMACHINE COMPANY, OF SAME PLACE.

MACHINE FOR PLANING CIRCULAR GUIDES FOR ENGINE-BEDS.

, SPECIFICATION forming part of Letters Patent No. 475,939, dated May31, 1892.

. Application filed September 26, 1891. Serial No. 406,920. (No model.)

To all whom it may concern.-

Be it known that I, HERMAN I-IABERLIN, a citizen of Akron,in the countyof Summit and State of Ohio, have invented certain new andusefullmprovements in Machines forPlaning Circular Guides forEngine-Beds; and I do hereby declare the following to be afull, clear,and exact description of the invention, such as will enable othersskilled in the art to which 1.: it appertains to make and use the same.

My invention relates to an improvement in machines for planing circularguides of engine-beds. Heretofore engine-beds of this particular formhave been finished by the pro- I 5 cess of boring, which has beenaccompanied by numerous objections, such as the con sumption ofconsiderable time and the employment of a larger amount of metal than isreally necessary.

It is the object of my invention to overcome these objections and toproduce a planingmachine whereby the curved guides of an engine-bed maybe easily, quickly, and economically made with the employment of acomparatively small amount of material, or

at least a smaller amount than when the process of boring is employed.

WVith this object in view the invention consists in certain novelfeatures of construction 0 and combinations and arrangements of parts,as hereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a front elevation of aplaning-machine,sl1ow- 5 ing my improvements and the relation of thecutting-tool to the engine-bed and guides being operated upon. Fig. 2 isa side elevation of the planing attachment. Fig. 3 is a plan view of thesame.

A A represent suitable uprights or housings connected at their top by across-beam A. Located between the uprights or housings A A and at thebase thereof is a bed B, having grooves or ways a for the reception ofthe flanges or ribs a of a reciprocating carriage C, which carriage maybe of any preferred construction and driven in any suitable manner. Thecarriage is provided on its top with a series of clamps 0, whereby tosecure the engine-bed D to be operated on, as presently explained, tothe table or carriage C.

Mounted in the housings A A are wormshafts (l d, carrying pinions orbevel-gears e e at the upper ends, which gears are adapted to mesh withsimilar gears on the ends of a 5 5 transverse shaft 6, mounted on thecrossbeam A, said shaft being driven in any suitable manner. Locatedacross the uprights A A is a cross timber or rail E, constructedin amanner to receive screw-threaded perfora, 6o tions for the accommodationof the wormshafts cl cl, whereby the rail E may be raised or loweredrelatively to the engine-bed to be operated upon. The rail E is made inthe form of an open frame and has mounted therein and extendinglongitudinally thereof a series of shafts f f f, the latter being madein the form ofa worm. The shafts f f carry pinions g g, adapted to meshwith each other, and on one of said shafts a handle g is secured,whereby'motion may be imparted to the worm-shaft f.

The planing attachment consists, mainly, of a saddle F, a shaft G, across-head H, and an arm I. The saddle F of the attachment is screwedfirmly to the cross-rail E of the planer. The center of the shaft G,which has its bearing in the lower part of the saddle F, is setconcentric with the circle which marks the curved guides of theengine-bed. The cross-head H is firmly fastened to one end of the shaftG and carries at its two outer ends the cutting-tools J which aresecured thereto in any suitable manner. If desired, two or morecutting-tools J may be secured to each end of the cross-head H. The arm1, although made separate and bolted to the cross-head H, forms,practically, one piece with the cross head H and the shaft G. At theupper end of the arm I a rod K is pivotally connected, the other end ofsaid rod being pivotally connected to an adjustable head L. The headL isprovided with a screw-threaded perforation for the accommodation of theworm f and also with perforations for the passage of 5 the shafts ff,which serve as guides to insure the proper movement of the head L.

The planer table or carriage 0 having its ordinary reciprocatory motionon the guides or flanges a, the work of finishing the guides I in theengine-bed is done by the cutting-tools, while the feeding of thesetools in the arc of a circle is performed by the head L moving along thecross-rail H of the planer.

An important advantage gained by this means of finishing the curvedguides of an engine-bed over the old way of boring the guides is aconsiderable increase of strength and stiffness of the engine-beditself, since an engine-bed to be finished by boring must necessarilyhave a cross section through the guides, as shown by dotted lines 00 0cin Fig. 1, in order to make room for the revolving boring-tool. My newmethod of finishing these guides allows the back rib of the bed to bebrought nearer to the center line of the engine, in which the straintakes place, therefore increasing the strength of the bed with a smallerquantity of metal.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a planing-machine, the combination, with a suitable support and acutter-head, of a movable head, means for adjusting the lastmentionedhead, and a rod or link connecting said heads, substantially as setforth.

2. In a planing-machine, the combination, with a cutter-head, of an armprojecting from said cutter-head, a movable head, means for moving saidmovable head, and a rod or link connecting said movable head with thesaid arm, substantially as Set forth.

3. In a machine for planing circular guides of engine-beds, thecombination, with a cross beam or rail, of a saddle secured thereto, ashaft mounted in said saddle, a cross or cutter head carried at one endof said shaft, an arm projecting from said cross or cutter head, amovable head carried by the cross beam or rail, a rod or link connectingthe movable head with the arm projecting from the cutterhead, and meansfor moving said movable head, substantially as set forth.

4. In a machine for planing circular guides of engine-beds, thecombination, with a cross beam or rail, of a saddle secured thereto, ashaft mounted in saidsaddle, a cross or cutter head carried at one endof said shaft, an arm projecting from said cross or cutter head, amovable adjustable head carried by the cross beam or rail, a rod or linkconnecting the movable adjustable head with the arm projecting from thecutter-head, means for adjusting said movable head, and means for movingsaid movable adjustable head, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

HERMAN HABERLIN. \Vitnesses:

FRANKLIN MonLLnR, CHAS. TOENSE.

